Patent US3101541A successfully refreshed from Google Patents.
US3101541A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High speed dental drill
Assignee: Individual
•
Filing: 1960-08-22
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Granted: 1963-08-27
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Expires: 1980-08-22
Abstract
No abstract record available.
Inventors
- 👤 Hoffmeister Erich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:38
CPC Classifications
A; A61; A61C; A61C1/00; A61C1/02; A61C1/05; Y; Y10; Y10S; Y10S415/00; Y10S415/904
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
IN HIGH SPEED CONTRA-ANGLE DENTAL HANDPIECES, THE COMBINATION INCLUDING, HANDLE MEANS, CYLINDRICAL HOUSING MEANS HAVING FRONT AND REAR END WALLS SECURED TO ONE END OF THE HANDLE MEANS, GASEOUS FLUID-DRIVEN TURBINE MEANS HAVING HOLLOW SHAFT MEANS TO REMOVABLY RECEIVE A TOOL THEREIN, GASEOUS FLUID-LUBRICATED ANTI-FRICTION BEARING MEANS TO POSITION THE TURBINE MEANS WITHIN THE HOUSING MEANS, SAID HANDLE MEANS BEING PROVIDED WITH MEANS TO SUPPLY GASEOUS FLUID TO THE INTERIOR OF THE HOUSING MEANS, SAID REAR WALL BEING PROVIDED WITH ANNULAR CHAM-
Claim 2
Dependent Claim
82 words
IN HIGH SPEED CONTRA-ANGLE DENTAL HANDPIECES, THE COMBINATION INCLUDING, HANDLE MEANS, CYLINDRICAL HOUSING MEANS HAVING FRONT AND REAR END WALLS SECURED TO ONE END OF THE HANDLE MEANS, GASEOUS FLUID-DRIVEN TURBINE MEANS HAVING HOLLOW SHAFT MEANS TO REMOVABLY RECEIVE A TOOL THEREIN, GASEOUS FLUID-LUBRICATED ANTI-FRICTION BEARING MEANS TO POSITION THE TURBINE MEANS WITHIN THE HOUSING MEANS, SAID HANDLE MEANS BEING PROVIDED WITH MEANS TO SUPPLY GASEOUS FLUID TO THE INTERIOR OF THE HOUSING MEANS, SAID REAR WALL BEING PROVIDED WITH ANNULAR CHAM-
References Cited (Backward Citations)
US2180993A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-08-26 | 1967-02-25 | 1967-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-26 | 1971-02-25 | 1971-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-26 | 1975-02-25 | 1975-08-27 | $7700.00 | Window Closed / Lapsed |